For this particular deck, focus on Dinosaurs and their support. There is the common Dino-Rabbit deck style you can build around, but simply pick your best dino-beatstick, remove anything that isn't your kind of staple or doesn't fit your theme, and have at it. If you prefer to have everything a single attribute, then I suggest adding Gozen March, as well as considering if you'll be using Synchro or Xyz monsters in your deck, as they'll also change the way a deck can run, at least in my opinion.

1.) Organize. You see that blue letter A, red letter Z and the down arrow sign on the left of your screen above DECK? That sorts your Deck so that you can tell where is what easily. It will group your Monsters, Spells, and Traps together so it is not all over the place.

2.) Written decklist. Ideally, after posting a screenshot of your Deck you can make things easier for yourself and others by writing down the Decklist in the post. Believe it or not, there are well over thousands of cards in Yu-Gi-Oh! and not all are easily identified.